For example by locking 2.2 million people in a 45 x 10 km area, taking away any external food supply, forbidding them from working their fields or going fishing and throwing bombs on an area that is populated by 50% under 18 year olds, officially admitting that they target ambulances, refugee camps and the like? According to the UN the people in the Gaza strip are currently at an average 2 slices of bread per person and day. Won't take much longer until the fighting is over at this rate.